Obama campaign manager to meet Brown campaign

President Barack Obama's campaign manager and former political adviser Jim Messina will meet with Lt. Gov. Anthony Brown's supporters on Monday to talk about Maryland's gubernatorial race.

Why? It's not exactly clear.

Brown's campaign said Messina will also make a public announcement about the race, though Brown's campaign manager Justin Schall was mum about about what that announcement could be.

Messina oversaw Obama's 2012 re-election campaign, and worked in the White House as a deputy chief of staff during the president's first term. This year, he led the Organizing for America's so-far-unsuccessful push for tougher federal gun laws.

Brown is the only Democrat to formally annouce for next June's primary to suceed term-limited Gov. Martin O'Malley, also a Democrat.

Two other Democrats have signaled they plan to run. Attorney General Douglas F. Gansler said he plans to announce in September. Montgomery County Del. Heather Mizeur told her supporters in a Wednesday email that her campaign reached an important fundraising goal that would determine whether her potential bid for governor will continue.